Home / 7,166.25-9,881.43-4,645.05

Finding the Fourth Proportional to 7,166.25, 9,881.43 and 4,645.05

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Solution

The fourth proportional to 7,166.25, 9,881.43 and 4,645.05 is: 6,404.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,166.25 : 9,881.43 = 4,645.05 : x
  2. Step 2: Convert to fraction form
    7,166.25/9,881.43 = 4,645.05/x
  3. Step 3: Cross multiply
    7,166.25x = 9,881.43 × 4,645.05
  4. Step 4: Simplify right side
    7,166.25x = 45,899,736.42
  5. Step 5: Solve for x
    x = 45,899,736.42/7,166.25
  6. Step 6: Final answer
    x = 6,404.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.